Concrete lintel



DAVID F. STOCKBRDGE, OF OKLAHOMA, OKLAHOMA,

CONCRETE LINT EL.

Specification of Letters Patent.

Patented J an'. L1, 1921.

Application filed Gctober 2, 1918. Serial No. 256,492.

T 0 all Iwhom t may concern:

Be it known that l, DAVID F. irocineninen, a citizen oi the UnitedStates, residing at Oklahoma, in the county oi' klahoma and State ciOklahoma, have invented a new and uscitul Concrete Lintel, oit which thefollowno' is a speciiication.

llhis invention relates to a concrete lintel4 particularly designed tospan a window or other opening in a masonry wall. ln the term masonrywall l include any wall built up oi separate bloclrs, such as bricks orprepared stone.

ln such walls it is common to provide a lacing in 'front oi the lintel,and the general object ot my invention is to provide an improved lintelin which novel and eli'ective provision is made for supporting such afacing.

is tar as l am advised, it has not been possible to support a 'tacing'from any concrete lintel heretofore-used, except by securing an angleiron thereto or by making other special provision requiring an increasein both labor and material. ln my improved lintel the design is suchthat the iacin' is sup ported directly by the lintel, w lich is formedas a single integral structure. My invention also relates to the specialprovision made for sustaining the lower course of the Jfacing thussupported.

My invention further relates to certain arrangements and combinations ofparts which will be hereinafter described and more particularly pointedout in the appended claims.

A preferred form ci my invention and certain modilications thereof areshown in the drawings, in which l Figure 1 is a iront view of a portionof a wall in which my improved lintel is used;

Figu 2 is a vertical sectional view taken along the line Q-2 in Fig. 1;

3 is a horizontal section taken along the line 3-3 in Fig. 2;

Fig. e is an enlarged detail iront elevation showingthe means forsupporting the lower course ot the facing from the headers;

Fig. 5 is a vertical sectional view showing a modification;

Fig. 6 is a detail front elevation showing a second modification, and

Figs. and 8 are vertical sectional views taken alongthe lines 7-7 and8-8 in Fig. (i respectively.

Referring to Fig. 1, l have shown a portion of a masonry structure 10having a window opening 11 therein. The lintel l2 is indicated in dottedlines in Fig. 1, and is shown in vertical section in Fig. 2.

This lintel 12 consists of an integral concrete beam extending acrossthe opening in the wall and having its ends embedded in and supported bythe masonry structure. The lintel may be strengthened by the provisionoi suitable steel reinforcement 13 if desired. The thickness of thelintel is conimonly less than that of the wall, thereby providing aspace for a facing in front of the lintel.

i A longitudinally extending recess 14 is termed in the lower portion ofthe lintel, but spaced somewhat from the lower face of the lintel by aflange 11i, This recess 14 is of such dimensions that it can receive therear ends ot blocks or headers 15 which are suitably em bedded` thereinand proj ect outward to form a portion of the facing being supported bythe i'lange lll-1. The outer ends oi' these headers may project beyondthe tace of the wall to give an ornamental iinish or they may be 'flushwith the wall, as indicated by the dotted line in Fig. 2.

IThe lower course ot the facing is sustained by the headersin anyconvenient manner. ln Fig. 2 l have shown a construction'in which thelower course is formed of half bricks or bats 16 supported from theheaders 141 by tie-rods 17 embedded in the mortar between the bats andbetween the headers1 and provided at their lower ends with enlargedheads or washers of suiiicient size to engage the bats on either side.At its upper end each rod may be bent over, as indicated in Fig. 4l, toengage the top of a header. The upper courses 18 ot the facing restdirectly upon the headers 15.

With this construction it will be seen that the facing entirely concealsthe concrete linn tel, and at the same time is firmly supported therebywithout the use of expensive structural steel or other specialconstruction.

In constructing the facing above de scribed, it is convenient to use atemporary floor board 19 supported against the lower face of the lintel,upon which the lower course and the headers are built up, the tierods 17being inserted as the blocks are laid. After the mortar has set, thetie-rods are bent down over the headers and the upper courses are added,thus forming the complete facing.

In Fig. 5 I have indicated the use of strips of expanded metal 20between the headers and bats in place of the headed tierods previouslydescribed. The strips may be extended at their upper or lower ends, andthe ends may be bent around the adjacent blocks if desired.

ln Figs. 6, 7 and S, l have shown a construction in which the tie-rodsand metal strips are omitted. In this construction the headers l5 arealternately disposed, being separated by vertically extending blocks 2lcalled soldiers The soldiers also alternate with the bats 16 andwherever a soldier is used an additional short block or bat 22 replacesthe rear portion ofthe omitted header. By thus alternating the headersand. soldiers, the two lower courses are firmly bonded together and arefirmly secured to the lintel 12. y

Having fully described the construction and use of my improved lintel,it will be evident that it possesses many distinct advantages, includingsimplicity of construction and economy in manufarture. It will also beevident that changes and modifications can be made therein withoutdeparting from the spirit and scope of my invention as set forth in theclaims and I do not wish to be otherwise limited to the details hereindis closed, but what I claim is* l. As an article of manufacture for usein a faced masonry wall having an opening, a lintel formed as a singlepiece of concrete adapted to be embedded at its ends in said masonry andto extend across said opening as a self-supporting rigid unit, saidlintel having its outer face substantially vertical and parallel withthe outer face of the wall in which it is used, and havingalongitudinally extending recess thereinspaced from both the upper andlower edges of said lintel, and effective to receive portions of bricksof standard size formingq aV facing and to engage both the upper andlower faces of said bricks, thus independently supporting said facingonthe vertical recessedvface of said lintel.

nseaaie 2. As an article of manufacture, a concrete lintel for a facedmasonry wall comprising a reinforced concrete beam of less thicknessthan said wall and having a longitudinally extended recess in the frontface thereof adjacent the lower edge of said lin tel but spacedtherefrom, said recess being adapted to receive the rear ends of headerssupporting a facing, and the combined thickness of the lintel and facingbeing approximately equal to the normal thickness of the wall.

3. In a masonry wall having an opening, a concrete lintel covering saidopening and having longitudinally extended recess in the front facethereof, headers embedded in said recess and forming a portion of afacing, an additional portion of said facing disposed below saidheaders, and means to support said lower portion from said headers.

li. ln a masonry wall having an opening, a concrete lintel covering saidopening and having' a longitudinally extended recess in Y the front facethereof, headers embedded in .said recess and formingF a portion of vafacing, an additional portion of said facing disposed below saidheaders, and means to support said lower portion from said headers, saidmeans being; embedded in the mortar between said headers,

5. ln a masonry wall having an opening, a concrete lintel covering saidopening and havingn a longitudinally extended recess in the front facethereof, headers embedded in said recess and forming` a portion of afacino, an additional portion of said facing` disposed below saidheaders, and means to support said lower portion from said headers, saidheaders and said lower portion being composed of separate blocks andsaid means comprising tie-rods embedded in the mortar between adjacentblocks, said rods being supported by said headers and themselvessupporting the lower blocks.

ln testimony whereof l affixed my signature.

DAVID F; STUCKBRlDGrE.

have hereunto

